The man has shared the story to warn others about the risks that come with leaving their homes during the coronavirus pandemic.

He has also thanked frontline hospital staff for caring so well for his son, saying they had looked after his "so well".

(Twitter/Peter Jones)

"Thank you for all of the kind messages. I must say that we were unlucky, such a reaction in a young child is rare according to the Dr's so people shouldn't worry & he did recover very quickly with the right support," he continued. "I am concerned that my tweet has put many off going to the s'markets but with no delivery slots this isn't an option for most.

"We were unlucky, the s'markets are doing the best they can to protect all. We must try & limit visits and follow the guidance to limit risk.

(Twitter/Peter Jones)

"Whilst some debate going out at all, some are still travelling to beauty spots, parks & beaches.

"Please stay safe and please try to avoid going out as much as possible. #StayHomeSaveLives #day8oflockdown #coronavirus".

His tweets have been shared by thousands of followers.

A man shopping at Tesco in London where social distancing is being practised. (Anadolu Agency via Getty Images)

Like many countries around the world the UK has implemented strict measures to slow the spread of COVID-19 including social distancing measures such as floor markers to keep customers two metres apart, limiting the number of shoppers who are in the store at the same time and reducing the number of checkouts so customers aren't standing too close to each other.

Just as is the case in Australia, photos of Brits not practising social distancing while out and about have been shared around the world, with law enforcement forced to step in to ensure everyone's safety.

This morning it was reported that British Prime Minister Boris Johnson has been moved into intensive care in hospital.

Prime Minister Johnson revealed he had contracted coronavirus at the end of March and his condition has since worsened.